Metric 18-8 Stainless Steel Flat Washers (A2)
What are metric 18-8 stainless flat washers? Metric 18-8 stainless flat washers, grade A2, are general-purpose metric round washers that spread a fastener's load and protect the surface. Made from corrosion-resistant 18-8 stainless, comparable to metric A2, they resist rust in wet and outdoor metric assemblies.
How do I size metric flat washers?
Metric flat washers are sized to metric bolt diameters such as M4, M6, M8, and M10, so the key is matching the washer to your bolt's metric size. In 18-8 stainless, comparable to metric A2, they offer strong corrosion resistance for general outdoor and freshwater use. Pair them with A2 metric bolts and nuts to keep the joint at one corrosion grade. For coastal or saltwater exposure, step up to A4 metric, which is comparable to 316.
Why choose metric 18-8 stainless flat washers
- Metric sizing: matched to M-series bolt diameters.
- Corrosion resistant: 18-8 stainless (A2) resists rust outdoors.
- General purpose: the everyday metric washer.
- Match grade: pairs with A2 metric hardware.
Common applications for metric 18-8 flat washers
- Metric machinery and equipment
- Imported and automotive hardware
- General outdoor metric assembly
- Freshwater and damp metric joints
For coastal metric use, see A4 metric stainless flat washers, and browse every material on the main flat washers category.
Metric 18-8 Stainless Flat Washers FAQ
Is A2 the same as 18-8 stainless?
A2 is the metric designation comparable to 18-8 and 304 stainless, with similar corrosion resistance.
What metric sizes are available?
Common metric diameters such as M4, M6, M8, and M10. Match the washer to your metric bolt size.
Which metric grade for coastal use?
Use A4 metric, comparable to 316, for coastal and saltwater exposure. A2 suits general outdoor and freshwater use.